NOAA S-57 chart cell
Alaska
US4AK6TM
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 340
- S-57 layers
- 27
- Published
- Feb 7, 2022
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 65.40000° N
- South
- 65.10000° N
- West
- 166.80000° W
- East
- 166.20000° W
- Center
- 65.25000° N, 166.50000° W
- Bounds area
- 272 sq nm
- Feature density
- 1.2516 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 12.6
- Smallest layer
- 1
- Largest layer
- 87
- Area sq km
- 932
- Features per sq km
- 0.3649
- COALNE Coastline 87
- LNDARE Land area 56
- RIVERS River 30
- SBDARE Seabed area 30
- LNDRGN Land region 26
- LAKARE 18
- M_QUAL Data quality 15
- DEPARE Depth area 14
- DEPCNT Depth contour 12
- SOUNDG Sounding 12
- LNDELV 9
- OBSTRN Obstruction 5
- UWTROC Underwater rock 5
- BUAARE 3
- SLOTOP 3
- AIRARE 2
- DAYMAR 2
- SEAARE Sea area 2
- BCNLAT Lateral beacon 1
- BCNSPP Special purpose beacon 1
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4AK6TM.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6TM/2.0/US4AK6TM.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6TM/2.0/US4AK6TM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6TM/2.0/US4AK6TM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6TM/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Feb 7, 2022 | metadata.json |